Don't just pop the top page off the stack, but pop the download page.
Also explicitly switch to the dive list afterwards.
Additionally, fix a typo in the code that attempts to deal with the
shortcut buttons. I believe that right now this code is completely
broken, but while I contemplate how this should work, let's at least fix
the stupid typo.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
90f8c1138e